Hi,
if I start my app I load GoogleMaps. During loading the map I'm
showing a progressbar. If the loading is complete everything works
fine but if I'm pressing the Back-Button during loading file the app
crashes. Seems to be a memory problem. Could someone help me?
Tom
public class KarteAnzeigenActivity extends MapActivity implements
LocationListener {
private MapController map_Controller;
private MapView map_View;
private MyLocationOverlay mMyLocationOverlay ;
private GeoKontaktOverlay mMapViewOverlay;
private Progressbar progThread;
private ProgressDialog progDialog;
private float mlatitude;
private float mlongitude;
/** Kuerzel fuers Logging. */
private static final String TAG =
KarteAnzeigenActivity.class.getSimpleName();
@Override
public void onCreate(Bundle savedInstanceState) {
try
{
requestWindowFeature(Window.FEATURE_LEFT_ICON);
super.onCreate(savedInstanceState);
setContentView(R.layout.mapkarte);
setFeatureDrawableResource(Window.FEATURE_LEFT_ICON,R.drawable.icon);
showDialog(0);
if(getIntent().hasExtra("latitude") == true)
mlatitude =
getIntent().getExtras().getFloat("latitude");
if(getIntent().hasExtra("longitude") == true)
mlongitude =
getIntent().getExtras().getFloat("longitude");
initMapView();
// fuege der MapView das Overlay fuer die
// empfangene Position hinzu
initGCFormelOverlay();
// Zeige die eigene Position mit Hilfe
// des Overlays aus der Google Api
initMyLocationOverlay();
// create an overlay that shows our current location
}
catch (Exception ex)
{
Log.i(TAG, ex.getMessage());
Toast.makeText(this,"UI problem in " + TAG + "-" +
ex.getMessage(),Toast.LENGTH_LONG).show();
}
}
// Method to create a progress bar dialog of either spinner or
horizontal type
@Override
protected Dialog onCreateDialog(int id) {
switch(id) {
case 0: // Spinner
progDialog = new ProgressDialog(this);
progDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
progDialog.setMessage("Loading...");
progThread = new Progressbar(handler);
progThread.start();
return progDialog;
default:
return null;
}
}
// Handler on the main (UI) thread that will receive messages
from the
// second thread and update the progress.
final Handler handler = new Handler() {
public void handleMessage(Message msg) {
// Get the current value of the variable total from the
message data
// and update the progress bar.
if(progDialog != null)
{
int total = msg.getData().getInt("total");
progDialog.setProgress(total);
if (total <= 0){
progDialog.dismiss();
progThread.setState(Progressbar.DONE);
}
}
}
@Override
protected void onDestroy() {
Log.d(TAG, "onDestroy() aufgerufen...");
super.onDestroy();
if( this.progThread != null)
this.progThread.destroy();
if (this.progDialog != null) {
progDialog.dismiss();
}
}
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